A Presidential Puzzler

News that Ségolène Royal lost her bid to become the 1st woman president of France inspires today's 2-part Presidential Puzzler:

1) Though it remains sans Présidente, from 1991 to 1992 the Republic of France was governed by a woman head of government. What was her name and title?

2) What country most recently installed a woman as its President?
a) Switzerland
b) Swaziland
c) Sweden

Answers below.